smpboot: allow passing the cpumask on per-cpu thread registration
It makes the registration cheaper and simpler for the smpboot per-cpu
kthread users that don't need to always update the cpumask after threads
creation.
[sfr@canb.auug.org.au: fix for allow passing the cpumask on per-cpu thread registration]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Chris Metcalf <cmetcalf@ezchip.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index a6ffa43..e5bb86f 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -713,15 +713,12 @@
int err = 0;
if (!watchdog_running) {
- err = smpboot_register_percpu_thread(&watchdog_threads);
+ err = smpboot_register_percpu_thread_cpumask(&watchdog_threads,
+ &watchdog_cpumask);
if (err)
pr_err("Failed to create watchdog threads, disabled\n");
- else {
- if (smpboot_update_cpumask_percpu_thread(
- &watchdog_threads, &watchdog_cpumask))
- pr_err("Failed to set cpumask for watchdog threads\n");
+ else
watchdog_running = 1;
- }
} else {
/*
* Enable/disable the lockup detectors or